Electric switch.



R. ISHIYAMA.

ELECTRIC SWITCH.

APPLICATION FILED OUT. 4, 1913.

Patentgd July 21,- 1914,

WITNESSES.

A TTORNEY vention.v Figs. 2 and 3 are vertical sectional j UNITED STATESPATENT OFFICE.

BISAKU ISHIYAMA, OF SEATTLE, WASHINGTON.

ELECTRIC SWITCH.

Specification of Letters Patent. Application filed October 4, 1913.Serial o 798,321.

Patented July .21, 1914.

To all it may concern: Be 1t-'-'-l'rnown that I, RISAKU Ismail-um, asubject of the Emperor-of Japan, residing at Seattle', .in the countyof-King and State of Washington, have invented certain new and usefulImprovements in Electric Switches, of which following isa specification.This invention relates to improvements in electriciswitches, and has forits object the provision of time controlled devices for actuating; saidswitch'at. any predetermined hour and, minute of. the day.

r;-."The'apparatus may be employed in any situation where atime-controlled switch is desirable but it is articularly applicable forautomobile use in ighting the sideand taillights thereof where the caris left standing in; an. exposed. position, as in a street, and it.

isinconvenient for the owner to be present to turn on. the lights.

In the present drawings is illustrated an embodiment of my inventionparticularly adapted to automobile service.

- With the "above objects in view, the invention consists in the novelconstruction of an electric switch and the combination and adaptationtherewith of time-actuating devices, as will be fully explained in thefollowing specification, illustrated in the accompanying drawings, andfinally set forth:

in the pended. claims.

In said drawings, Figure 1 is a view intront elevation of an embodimentof my inviews of. the same with the switch elements shown in open andclosed positions, respectively, Figs. 4 and 5 are .detached detail?perspective views of elements of the invention.

Referring to said views, the reference numerals 2 and 3 designate frontand back walls, respectively, of a casing, including an upper verticallyarranged switch compartment 4 and a lower motor compartment 5.

Said compartment d is lined on its rear side and bottom dividing the twosaid compartmentswith-insulating material 6 in which are fixedlpositioned terminals 7 and 8, respective y, of an electric circuit Aplunger 9 of non-conducting material 1s arranged for verticalreciprocatiive movements.-

copper or other good conducting material is ing its lower end 10extended forwardly below sald plunger in vertical alinement with bridgeto close the gap between said-terminals when the plunger is in itslowermost position. Terminal 7 includes a leaf 7 resiliently.protrudinginto the path of said plunger while end 10 of the bridge strip10 is curved to afford yielding electricalconnec- 'tions at therespective oints. A vertically lower end to said plunger and slidablyex-. tends through an aperture in the top of the casing 1 where it isprovided at its extremity withv a knob 11 An extension spring 12 iscoiled about said stem within compartment is secured at one end in arecess at one side of said compartment 4 and formed at itisflpposlte endwith a convex port-ion 1-3.}I wh'ich in said plunger for yieldinglysecuring the plunger in ill-operative condition in the upis fittedhaving its dial. 19 at actuate the trigger aforesaid. Thespindle videdwith a gear-wheel 21 which communicates its rotary motion throughintermediate gear-devices 22 to agear wheel 23 integral with a, hub 2drotatably mounted upon a mandrel 25, see Fig.5. Said mandrel is providedat rearextremity with a squared arranged stem 11 is rigidly secured atits is adapted to engage within a depre's's'ion 14 16. Said members arehingedly con- W'thin said motor compartment the fnontotnflie. casing.The works of said clock at-e not shown except such parts as are to 95 l20 for the hour hand of the clock is :pro-

- irrsaid switch compartment. A StriplO of I secured to the reartace ofsaid plunger havthe terminal 8. Strip 10 thus serves as a 4- having itsends bearing upon sald-casing. top and the plunger, respectively, tendinto press the latter downwardly. A flat-spring 13 per portion ofcompartment 4, as indicated end 26 to accommodate aturning key (notshown) and at its frontend extends outside of said dial 19 where it isprovided with a pointer 27 in connectionwith a minor dial :28 upon saiddial face 19. Within said compartment 5 a pin 29..projects at rightangles from said 'mandrel and coacts with a cam face 30 upon the forwardend of said hub 24:. -Member 15 of said trigger is secured at 15 to theframe of the clock and extends,

-jum' s outward under the pressure exerted by t e spring-member 15. helatter similarly springs outwardly and such movement causes the trippingof the plunger thereabove, as will be present-1y explained The continuedrotation of the hub causes the pin to-wipe upon the inclined portion 33and, by reaction, thrust; the hub and member 15 inwardly to theiroriginal position.

The ordinary inoperative position of the device is indicated in dottedlines in Fig. 2 with the spring 13 engaging the depression 14 holdingthe plunger in its uppermost position. hen it is desired to pre-arrangethat the lights shall be turned on at a given time, the mandrel 25 isadjusted until the pointer27 indicates the selected hour upon the minordial '28. The plunger 9 is then pressed downwardly out of engagementwith said spring-l3 until it rests upon the wing 16 of the trigger,being then as shown in full lines in Fig. 2. At the proper time, therotation of the spindle 20 by the clockwork similarly rotates the hub 24bringing the notch 33 into register with the pin 29. As aforesaid, thetrigger member 15 is then released and draws forwardly sufliciently atits upper end, as indicated in Fig. 3, to release the plunger whichdescendsthrough force of its gravity and the spring 12 bridging thetwoterminals 7 and 8 completing the circuit A an'd lighting the lamp orlamps thereon. The continued rotation of the hub 24 and thespring-pressed engagement of the pin 29 on the inclined portion 33 ofsaid cam-face causes the spring member 15 to recede to its original andnormal position withthe wing lfiprojecting within said compartment 4 inthe path of the plunger. Should the plunger be in its lowermost positionwherein saidelectric circuit is closed when said wing is reenter-edwithin the cas lines in Fig. 3, through its engagement with saiddepression 1st and a spring 34 is provided at its connection with themember 15 to return the wing to its normal horizontal position as soonas the interference is withdrawn. The plunger is desirably rovided witha roller or other anti-friction evice 35 at its forward lower edge whereit is supported by said wing 16 whereby the force required to withdrawsaid wing when suitably actuated is reduced to a minimum.

'The lights are extinguished by raising the plunger to its elevatedinoperative position, or they may be turned off by a snap or othersuitable switch (not shown) in a three-way system of wiring. In thepresent example, the circuit A is shown including a battery B and a lampC while D indicates a supplementary circuit having a switch E wherebythe lamp may be lighted independently of the time-controlled devicesshown. Also itwill be understood that while I have described myinvent-ion as a unit it may be duplicated or units included tocorrespond to the requirements of the user. It is found usuallydesirable to provide separate switch devices for the side-lights and forthe taillights of an automobile, hence in the illustrated embodiment theapparatus is shown in Fig. 1 as including duplex switch devicesdesignated by the same or corresponding reference numerals and operatedby the same clock-mechanism. Thus the member 15 is shown branched at itsupper end and supports two elements 16 and associated parts and thecasing contains two compartments 4 each containing separate circuitterminals and operative mechanism, as will be readily understood.

Having described my invention, what I claim, is 4 1. The combinationwith a suitable timecontrolled mechanical motor, a notched cam driventhereby, a pin coacting with said notched cam limiting the movements ofsaid cam longitudinally of its shaft, a springtrigger urging said caminto engagement with said in, and a wing hingedly connected to the ii'ee end of said trigger efiected in reciprocative movements by the saidlongitudinal movements of the cam, of a switch closing element adaptedto be supported in its open position by said wing in one of the extremepositions of the win and tripped to close when said wing is withdrawn.

2. The combination with a suitable timecontrolled mechanical motor, a.notched cam driven thereby, a pin coacting with said notched camlimiting the movements of said cam longitudinally of its shaft, 8.springtrigger urgmg a'id cam into engagernntif wing and tripped to closewhen said wing is with saidjj'in, and a wing yieldinglygco nwqwithdrawn. 10 nected at right angles to the free end ofsiaid Signed atSeattle, \Vaslm, this 27th day of trigger and effected in reciprocativemove.v 'Sept'en1ber,l913.

ments by the said longitudinal movements'of RISAKU ISHIYAMA. the .cam,of a switchclosing element adapted YVit-nesses:

to be supported in its open position by said HORACE BARNES,

.wing in one of the extreme positions of the H. M00. BILLINGSLEY.

00p! of this patentmy be obtdned tor five cents each, by addressingthe"Commissioner of Patents,

. Washington, D. C.

